Epson MX-80 Technical Manual page 12

(3) Power supply circuit
The power supply circuit is partially located on the main circuit board. However, the
power transformer and line filter are mounted separately on the lower case. The power
supply circuit supplies all the voltages required for the MX-80. The line filter consisting
of capacitors blocks noises to and from an external source.
Fig. 1.3 Power Supply Circuit
(4) Housing
The housing of the MX-SO consists of an upper case and a lower case, and accommo
dates all the components described m paragraphs (D, (2) and f3) above. The lower case
has been designed to facilitate mounting of the above-mentioned components.
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Fig. 1.4 Upper and Lower Cases